Seminario de Categorías

Expositor: Yasuyuki Kawahigashi (Universidad de Tokio)

Resumen: We will explain studies of 2-dimensional topological order in terms of tensor networks and subfactors arising from commuting squares. Appearance of braiding strucuture from 3-dimensional topological quantum field theory is demonstrated from a viewpoint of tensor categories. We will give higher relative commutants of a subfactor as spaces on which Hamiltonian acts.

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